In my HiFi system the CD player is playing way too loud compared to the other sources (radio, streaming gadgets, tv. etc)
I figure a simple voltage divider say 33kohm and 27kohm would reduce with about 6dB. Simply hack the circuit into the cd player, where there is plenty physical room around the connector inside.
Something like this
*---, | 33K | +-----* | 27K | *---+-----*
But, will this hack be bad for the fidelity?
Should I aim for 50kohm as imput impedance or is best practice different when we are dealing with stereos from '90?
Also, a friend of mine told me to add a 220nF cap in series with the output to block DC components, but I failed to understand where they should come from.
*---, | 33K | 220nF +-----||----+----* | | 27K 56K | | *---+-----------+----*
The CD is a NAD 5240 and the preamp is a NAD 1155 in case any of you think it might matter.